More about Univerter

The Units List window:

Wherever possible, internationally-recognized standard abbreviations were used for
units. If you are unsure of the proper abbreviation for a unit however, you can find
it quickly by opening the Units List window. This window - which can be
"docked" to the main Univerter window - allows you to very quickly search the
available units. By clicking on one of the column headings, or by selecting a
specific units group, you can sort the list in a number of ways to allow fast finding of
your unit (e.g. - sort by units Group). Select and move the unit to the main window
either by double-clicking or dragging and dropping.

The Add/Edit Unit window:

Here you can add your own units/constants or modify existing units/constants.
Univerter uses the international standard abbreviations for units where available, but you
don't need to if you don't want to. Either change the abbreviation, or define
synonyms as you desire. Synonyms allow a unit/constant to have alternate spellings
or abbreviations.

Since Univerter treats all "Units" as equations, you can easily define
constants (as shown here).

The Add/Edit Groups window:

Groups allow you to classify units combinations. For example, (in^2) would be
classified as area. Univerter will list units by group in the Units List window for easier
searching. It will also tell you what group a particular combination of units
belongs to when possible. It does this by breaking-down your units-equation to base
units. So if you type (kg*ft/s^2) in one of the windows in the main Univerter
window, a help window would indicate that this is [Force -- (g^1)(m^1)(s^-2)].
Univerter ships with over 70 units groups already defined, but you can add more.